Schema for woocommerce

Hello,

Yes, you should enable the Remove Snippet Data option for the Product Categories as Product Schema should only be inserted on pages that reference a single product according to Google guidelines:
https://developers.google.com/search/docs/advanced/structured-data/product

For individual products, you can fix the SKU and availability issue easily as well:

To fix the brand warning, you can add the following code in your theme’s functions.php file:

// Add Brand for Products.
add_filter( 'rank_math/snippet/rich_snippet_product_entity', function( $entity ) {
$entity['brand'] = 'Rank Math';
return $entity;
});

Replace the “Rank Math” text with your actual brand name then run your website through the Structured Data Testing tool once again.

We have an option to select the Global Identifier in the PRO plugin, for now, you can fix it by adding that to your products using the custom product attribute feature in WooCommere or you can use this plugin: https://wordpress.org/plugins/product-gtin-ean-upc-isbn-for-woocommerce/

Hope that helps and please do not hesitate to let us know if you need our assistance with anything else.